71457126 has 32 divisors (see below), whose sum is σ = 154952448. Its totient is φ = 21837600.

The previous prime is 71457109. The next prime is 71457149. The reversal of 71457126 is 62175417.

It is a super-2 number, since 2×71457126² = 10212241712359752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8745 + ... + 14811.

It is an arithmetic number, because the mean of its divisors is an integer number (4842264).

Almost surely, 2^71457126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71457126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77476224).

71457126 is an abundant number, since it is smaller than the sum of its proper divisors (83495322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71457126 is a wasteful number, since it uses less digits than its factorization.

71457126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236.

The product of its digits is 11760, while the sum is 33.

The square root of 71457126 is about 8453.2316897149. The cubic root of 71457126 is about 414.9685484463.

The spelling of 71457126 in words is "seventy-one million, four hundred fifty-seven thousand, one hundred twenty-six".